I´m using the sitewide feed by IT Damager, but it doesn´t seem to be under development, because it works fine.
The thing is that under WPMU 1.3 it works fine, but it doesn´t add the tags as categories, as the regular per blog feed does. This is odd, because it uses the_category_rss function to get the categories, same as the regular feed output which does include the tags as categories.
I really don´t understand why this is happening, since it´s the same function afaik....
any ideas?